A sample of Kr at 152.04K experiences a change in volume from 46.578L to 76.546L. If its new pressure is 6.2025 atm at 859.52K, what was its oriainal oressure in kilopascals?

Q: A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C₂H₂O. Determine the mole…

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Q: A chemistry graduate student is studying the rate of this reaction: 2C1,O, (g) ► 2Cl₂ (g) +50₂ (g)…

A: The given reaction is: 2Cl2O5g→2Cl2g+5O2g The rate law expression for the above reaction is:…

Q: Sucrose has the molecular formula C12H22O11. If a sucrose sample contains 8.0 x 1018 atoms of…

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Q: If you have 42.5 moles of glucose (C6H₁206) approximately how many grams do you have? #3

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Q: Indicate whether each of the following describes a gas, a liquid, or a solid. Drag the appropriate…

A: In solid, particles are packed tightly together in a fixed arrangement, hence, solid has definite…

Q: Pressure (Atm) 25 85 20- 15- 10- 5. A plot of pressure-volume isotherms for an ideal gas at two…

A: Given that, the plot of pressure-volume isotherm for an ideal gas at two different temperatures are…

Q: 1.01897200167 What are the significant figures?

A: Since, In decimal number, if number greater than 1 then zero comes after decimal number count as…

Q: Please provide a mechanism

A: This reaction is aldol condensation reaction because carbonyl compound contain acidic protons on…

Q: Suppose the formation of dinitrogen pentoxide proceeds by the following mechanism: step elementary…

A: For any reaction: aA+bB→cC The rate law is given by: rate=kAxBy Here x and y are the partial…

Q: In part 1 of this lab, you will be calculating A-H by conducting constant-pressure calorimetry…

A: Answer: When a m mass of a system gains Q heat and temperature change is ∆T then relation between…

Q: Compound 1: C8H100 HSP-00-067 d(2 H) d(2 H) ppm s(3 H) T s(3 H)

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Q: 21. Calculate the heat change to convert 72.0 grams of water vapor from a temperature of 110.°C to…

A: We have to calculate the heat change to convert 72.0 g water from 110°C to -5.00 °C

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

A: Order of the reaction with respect to each reactant is calculated by using given data as following :…

Q: In parts 2, 3 and 4 of this lab, you will be conducting calorimetry experiments on neutralization…

A: In calorimeter, the heat of the reaction is calculated using the formula q=m×c×∆T where m is the…

Q: Sucrose has the molecular formula If a sucrose sample C12H22O11. contains 5.0 x 1022 atoms of…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: The rate of disappearance of HBr in the gas phase reaction 2HBr(g) →H₂(g) + Br₂(g) is 0.130 M s-1 at…

A: Since, When we write rate law, we keep in mind that, Rate is equal to rate of appearance of reactant…

Q: if something is inductively favorable, is it an Electron withdrawing group?

A: Electron withdrawing groups :- The groups or atoms which pulls electron density towards itself…

Q: 4. Draw a picture showing the direction of heat flow in an endothermic reaction versus an exothermic…

A: The definitions are described below

Q: H. H H :Ö: H H H H Br Na O

A: E2 mechanism which refers to bimolecular elimination is basically a one-step mechanism. And here…

Q: Predict the signals correctly in the 1H-spectrum of 1,1,3-trifluoroacetone (only consider J1 through…

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Q: A 1.45 L buffer solution consists of 0.159 M butanoic acid and 0.332 M sodium butanoate. Calculate…

A: Answer: Buffer solution is the type of solution that resists the change in its pH on adding small…

Q: Michael is testing out the following reaction: Na2CO3+ 2HCl à 2NaCl + H2O + CO2. He combines sodium…

A: Answer: This question is based on law of conservation of mass which states that total mass of…

Q: 3. Rank these compounds in terms of expected solubility in water, and write a few sentences to…

A: Answer: The rank of expected solubility of the given compounds is as follow -

Q: 5. Which hydrogen is most acidic? На На 15/3 Ha Hb OMP Hb SP Hc -Hс Hd

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Q: Which of the following is the strongest base? ÖH OH 1 2 32 NH2 4 NH₂

A: Lewis base: The compound which donates a pair of electrons in an acid-base reaction. Therefore, the…

Q: a. What is the pH of a buffer solution that is 0.28 M NH3 and 0.28 M NH4+? K for NH3 is 1.8 × 10-5…

A: Given :  a.  Concentration of NH3 = 0.28 M  Concentration of NH4+ = 0.28 M  Kb of NH3 = 1.8 x 10-5…

Q: R `ОН R = H, alkyl, aryl R" H excess R' = alkyl, aryl H₂SO4 microwave R JU O: R'

A: This question belong to reaction mechanism of organic compounds. Mechanism done step by step.

Q: Complete the balanced dissociation equation for the compound below. If the compound does not…

A: The question is based on the concept of electrolytes. we have to write dissociation equation for…

Q: If a match contained 0.265 g of P4S3, what would be the energy released in kJ

A: The balanced equation for the combustion of P4S3 is P4S3 (s) + 8 O2 (g) -----> P4O10 (s) + 3 SO2…

Q: Upon reaction of 2.548 g of copper sulfate with 3.094 g of iron metal, 0.784 g copper metal was…

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Q: A 1.615-g sample of benzoic acid, C7H6O2 (122.12 g/mol) was burned in a bomb calorimeter with excess…

A: Answer:- This question is answered by using the simple concept of calculation of molar heat of…

Q: Fully explain the synthesis of anthocyanins, step by step. Provide pictures.

A: Anthocyanins are defined as the water soluble vacuolar pigments that may appear different in colour…

Q: 1. When 3.00 kg of water is warmed from 10.0°C to 80.2°C, how much heat energy is needed?

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Q: The numerical values ​​of the reaction enthalpies of reversible reactions are reciprocals of each…

A: The reaction enthalpy is calculated by subtracting the sum of enthalpies of all the reactants from…

Q: Synthesis of a nickel schiff base complex: nickel(II) acetate tetrahydrate + pyrrole-2-aldehyde was…

A: The reaction mechanism for the synthesis of the nickel Schiff base complex can be summarized as…

Q: Complete the following table. Be sure each of your answer entries has the correct number of…

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Q: 3) How many joules are required to melt 100 grams of water?

A: The latent heat of fusion is described as the energy which must be supplied to a solid in order to…

Q: w many particles are in 0.630 moles of calcium? 0 1.05 x 10-24 3.79 x 1022 06.3 x 1022 9.56 x 1023

A: Since, Number of atoms or molecules is the multiple of moles and avogadro's number. Thus,

Q: ionate that a treatment plant plans to degrade aerobically. i. Estimate the true yield of biomass,…

A: i. To estimate the true yield of biomass, fs0, on propionate in the aerobic reactor, we can use the…

Q: is this molecule aromatic  answer by drawing orbitals (VBT), applying huckels law, and drawing…

A: We need to determine is the given molecule aromatic  (a) by drawing orbitals (VBT), (b) applying…

Q: On the vitamin c molecule in a 3d structure position the arrow blue dashed arrows so that it points…

A: London forces are a type of intermolecular force that occurs between all molecules, including…

Q: If a 0.830 m aqueous solution freezes at -3.30 °C, what is the van't Hoff factor, i, of the solute?…

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Q: The boiling point of an aqueous solution is 101.18 °C. What is the freezing point? Consult the table…

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Q: 5-54 Using VSEPR theory, predict the molecular geometry of the following molecules. a. :0: :0::N:0:H…

A: This question belong to Chemical Bonding and molecular structure. VSEPR Theory: lone pair occupy at…

Q: 14. Menthol is a mild anasthetic isolated from peppermint oil. The most common stereoisomer is shown…

A: This question belong to you Stereochemistry

Q: Find ΔHrxn for the following reaction given the table of data below: 3 H2(g) + O3(g) → 3 H2O(g)…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: 9. H:SO. + NaOH- Reaction Type: 10. NaOH + NaCO, → Reaction Type: 11. NaOH +NaNO: → Reaction Type:…

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Q: Give the organic product formed. ● A. I x x x x IV B. II x.d X C. IIIX D. IV heat E ? |||

A: Diels-Alder reaction: It is a [4+2] cycloaddition reaction between a diene and dienophile in the the…

Q: 7. Ammonia can be synthesized according to the equation: 1/2 N₂(g) + 3/2 H₂(g) → NH3(g). The…

A: 7. Recall the given equation,                                12 N2 g + 32 H2 g → NH3 g…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.21 kg sample…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.